After an exhaustive analysis and with multiple alternative transportation fuel options considered, hydrocarbon-based fuels are expected to remain the predominant energy source driving American vehicles come 2050, according to a report by the National Petroleum Council.

The study, “Advancing Technologies for America’s Transportation Future,” sought to advise the U.S Department of Energy on fuels, technologies, industry practices and government policies for transportation in an effort to increase fuel efficiencies and reduce greenhouse gas emissions. In addition to petroleum, the report delved into the likelihood of biofuels, natural gas, electricity and ...